Fever after Cefovecin (Convenia) in dogs

220 reports to the FDA describe fever in dogs given Cefovecin. That is 5.8% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

220Reports
48%Marked serious
10%Recovered
20%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
58 35%
1–2 days
38 23%
3–7 days
34 20%
1–4 weeks
18 11%
Over a month
20 12%

How the animals did

Recovered
22 10%
Still unwell when reported
115 52%
Died
27 12%
Euthanised
16 7.3%
Not known
40 18%

Problems reported at the same time

Age of the animals

Under 1 year
27
1–3 years
40
4–7 years
67
8–11 years
59
12+ years
22

About this medicine

Cefovecin a long-acting antibiotic injection.

Products with this ingredient include Convenia. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Cefovecin cause fever in dogs?
220 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 2 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Fever with similar medicines

All reported side effects of Cefovecin in dogs · Medicines most reported with fever